These watches are Shock Resistant with 100M Water Resistance and 4 Daily Alarms now with stylish genuine leather bands. Shock Resistant 100M Water Resistant LED Light with Afterglow World Time: 29 times zones (48 cities), city code display, daylight saving on/off 4 Daily Alarms / 1 Snooze Alarm Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) 1/100 second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times Hourly time signal Auto Calendar (pre-programmed until the year 2099) 12/24 Hour Formats Accuracy +/-30 seconds per month Battery CR1616 Approximate Battery Life: 3 Years Module 2965 Case Size: 42.5 x 37.0 x 12.3mm (Approximate 1 1/2" Case Width) Total Weight: 61g